Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12254725 | Lifespan prediction device and lifespan prediction method | — | 2025-03-18 |
| 11549412 | Diagnosis device for internal combustion engine | — | 2023-01-10 |
| 11421344 | Gallium nitride crystal substrate | Yusuke Yoshizumi, Shugo Minobe, Yoshiaki Hagi | 2022-08-23 |
| 11396834 | Blow-by gas discharging device | — | 2022-07-26 |
| 11371399 | Oil return structure | Hitoshi Nishitani | 2022-06-28 |
| 11203955 | Blow-by gas system | — | 2021-12-21 |
| 10823107 | Internal combustion engine and control method for same | — | 2020-11-03 |
| 10316714 | Blow-by gas reduction device | Eiji Matsushima | 2019-06-11 |
| 9760070 | Variable speed device and variable speed system | — | 2017-09-12 |
| 9368568 | Group III nitride crystal substrates and group III nitride crystal | Koji Uematsu, Seiji Nakahata, Shinsuke Fujiwara | 2016-06-14 |
| 8847363 | Method for producing group III nitride crystal | Koji Uematsu, Seiji Nakahata, Shinsuke Fujiwara | 2014-09-30 |
| 8823142 | GaN single crystal substrate having a large area and a main surface whose plane orientation is other than (0001) and (000-1) | Shinsuke Fujiwara, Koji Uematsu, Seiji Nakahata | 2014-09-02 |
| 8598685 | GaN single crystal substrate and method of manufacturing thereof and GaN-based semiconductor device and method of manufacturing thereof | Shinsuke Fujiwara, Koji Uematsu, Seiji Nakahata | 2013-12-03 |
| 8524575 | Group III nitride crystal and method for producing the same | Koji Uematsu, Seiji Nakahata, Shinsuke Fujiwara | 2013-09-03 |
| 8471366 | Nitride semiconductor substrate | Hidenori Mikami, Naoki Matsumoto, Yusuke Yoshizumi, Sayuri Yamaguchi | 2013-06-25 |
| 8228963 | Gallium nitride-based semiconductor optical device, method of fabricating gallium nitride-based semiconductor optical device, and epitaxial wafer | Yohei Enya, Yusuke Yoshizumi, Keiji Ishibashi, Katsushi Akita, Masaki Ueno | 2012-07-24 |
| 7816238 | GaN substrate, substrate with epitaxial layer, semiconductor device, and method of manufacturing GaN substrate | Hitoshi Kasai, Keiji Ishibashi, Seiji Nakahata, Takashi Kyono, Katsushi Akita +1 more | 2010-10-19 |
| 7047742 | Turbocharged engine and method for preventing surging in compressor | Kazutoshi Kono, Kenji Hatano, Shinichiro Kawai | 2006-05-23 |
| 6360702 | EGR and oil cooling system | — | 2002-03-26 |